如何在datatemplate中删除项目周围的空格? [英] How can I remove spaces around items in datatemplate?
本文介绍了如何在datatemplate中删除项目周围的空格?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
例如，我有以下列表框:
for example, i have following listbox:
<UserControl.Resources>
<Style TargetType="ListBoxItem" x:Key="ListBoxItemStyle" >
<Setter Property="HorizontalContentAlignment" Value="Stretch" />
<Setter Property="VerticalContentAlignment" Value="Stretch" />
</Style>
</UserControl.Resources>
<ListBox ItemsSource="{Binding Roles}" ItemContainerStyle="{StaticResource ListBoxItemStyle}" >
<ListBox.ItemTemplate>
<DataTemplate>
<Border Background="LightCoral" BorderBrush="Black" BorderThickness="1">
<TextBlock Text="{Binding Name}" />
</Border>
</DataTemplate>
</ListBox.ItemTemplate>
</ListBox>
如何删除每个项目周围的空格?
我找到了一种临时解决方案，可以添加具有值& quot; -3 -3 -3 -3& quot;的边距属性.在边境.但这不是解决方案.
图片已附加 [ ^ ]
谢谢
How i can remove spaces around each item?
i find a temp solution in adding a margin property with value "-3 -3 -3 -3" in border. but it is not solution.
image attached[^]
Thanks
推荐答案
您要做什么，使红色仅出现在文本后面?摆脱边界，而是设置实际文本块的背景/边框.有时设置边距是最好的解决方案.如果所有值都相同，则只需指定一次，而不是四次. margin =-3"
What do you want to do, make the red only appear behind the text ? Get rid of the border, and instead set the background/border of the actual text block. Sometimes setting a margin IS the best solution. If all the values are the same, you only need to specify them once, not four times. margin="-3"
这些空格是默认ListBox模板中的空白.
几乎没有地方可以负责这些空间.
这是默认的列表框样式
These spaces are margins in default ListBox template.
There are few places could be responsible for the spaces.
Here is default ListBox Style
<Style x:Key="ListBoxStyle1" TargetType="ListBox">
<Setter Property="Padding" Value="1"/>
<Setter Property="Background" Value="#FFFFFFFF"/>
<Setter Property="Foreground" Value="#FF000000"/>
<Setter Property="HorizontalContentAlignment" Value="Left"/>
<Setter Property="VerticalContentAlignment" Value="Top"/>
<Setter Property="IsTabStop" Value="False"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="TabNavigation" Value="Once"/>
<Setter Property="ScrollViewer.HorizontalScrollBarVisibility" Value="Auto"/>
<Setter Property="ScrollViewer.VerticalScrollBarVisibility" Value="Auto"/>
<Setter Property="BorderBrush">
<Setter.Value>
<LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FFA3AEB9" Offset="0"/>
<GradientStop Color="#FF8399A9" Offset="0.375"/>
<GradientStop Color="#FF718597" Offset="0.375"/>
<GradientStop Color="#FF617584" Offset="1"/>
</LinearGradientBrush>
</Setter.Value>
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="ListBox">
<Grid>
<VisualStateManager.VisualStateGroups>
<VisualStateGroup x:Name="ValidationStates">
<VisualState x:Name="Valid"/>
<VisualState x:Name="InvalidUnfocused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="ValidationErrorElement">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
<VisualState x:Name="InvalidFocused">
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="Visibility" Storyboard.TargetName="ValidationErrorElement">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<Visibility>Visible</Visibility>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="IsOpen" Storyboard.TargetName="validationTooltip">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<System:Boolean>True</System:Boolean>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</VisualState>
</VisualStateGroup>
</VisualStateManager.VisualStateGroups>
<Border BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="2">
<ScrollViewer x:Name="ScrollViewer" BorderBrush="Transparent" BorderThickness="0" Background="{TemplateBinding Background}" Padding="{TemplateBinding Padding}" TabNavigation="{TemplateBinding TabNavigation}">
<ItemsPresenter/>
</ScrollViewer>
</Border>
<Border x:Name="ValidationErrorElement" BorderBrush="#FFDB000C" BorderThickness="{TemplateBinding BorderThickness}" CornerRadius="2" Visibility="Collapsed">
<ToolTipService.ToolTip>
<ToolTip x:Name="validationTooltip" DataContext="{Binding RelativeSource={RelativeSource TemplatedParent}}" Placement="Right" PlacementTarget="{Binding RelativeSource={RelativeSource TemplatedParent}}" Template="{StaticResource ValidationToolTipTemplate}">
<ToolTip.Triggers>
<EventTrigger RoutedEvent="Canvas.Loaded">
<BeginStoryboard>
<Storyboard>
<ObjectAnimationUsingKeyFrames Storyboard.TargetProperty="IsHitTestVisible" Storyboard.TargetName="validationTooltip">
<DiscreteObjectKeyFrame KeyTime="0">
<DiscreteObjectKeyFrame.Value>
<System:Boolean>true</System:Boolean>
</DiscreteObjectKeyFrame.Value>
</DiscreteObjectKeyFrame>
</ObjectAnimationUsingKeyFrames>
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</ToolTip.Triggers>
</ToolTip>
</ToolTipService.ToolTip>
<Grid Background="Black" HorizontalAlignment="Right" Height="10" Margin="0,-4,-4,0" VerticalAlignment="Top" Width="10">
<Path Data="M 1,0 L6,0 A 2,2 90 0 1 8,2 L8,7 z" Fill="#FFDC000C" Margin="-1,3,0,0"/>
<Path Data="M 0,0 L2,0 L 8,6 L8,8" Fill="#ffffff" Margin="-1,3,0,0"/>
</Grid>
</Border>
</Grid>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
在我身上，它可以是Padding属性或此Grid
On my it can be Padding property or this Grid
<Grid Background="Black" HorizontalAlignment="Right" Height="10" Margin="0,-4,-4,0" VerticalAlignment="Top" Width="10">
<Path Data="M 1,0 L6,0 A 2,2 90 0 1 8,2 L8,7 z" Fill="#FFDC000C" Margin="-1,3,0,0"/>
<Path Data="M 0,0 L2,0 L 8,6 L8,8" Fill="#ffffff" Margin="-1,3,0,0"/
>
>
这篇关于如何在datatemplate中删除项目周围的空格?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
